Summary
A preparative method was developed for obtaining L-and D-2-hydroxy-3-methylbutyric acids by the separation of racemic 2-hydroxy-3-methylbutyric acid with the aid of D-and L-threo-2-amino-1-p-nitrophenyl-1,3-propanediols.
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Shchukina, L.A., Vdovina, R.G., Shvetsov, Y.B. et al. Preparative method of obtaining L- and D-2-hydroxy-3-methylbutyric acids. Russ Chem Bull 11, 286–288 (1962). https://doi.org/10.1007/BF00908036
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DOI: https://doi.org/10.1007/BF00908036